CHECK BRAKE SWITCH POWER SUPPLY.

1) Turn the ignition switch to ON.

2) Measure the voltage between brake pedal switch and chassis ground.

Connector & terminal

(B65) No. 4 (+) — Chassis ground (−):

QUESTION

Is the voltage 10 V or more?

Yes No

Repair the poor contact of brake switch connector.

NOTE:

Check the following item and repair or replace if necessary.

Open circuit in power supply circuit

Short circuit to ground in power supply circuit

Blown out of fuse (No. 4)